ATS Corporation Assigned New OTCBB Symbols in Connection With Its Name Change From Federal Services Acquisition Corporation to ATS Corporation

MCLEAN, VA -- (MARKET WIRE) -- January 29, 2007 -- ATS Corporation (OTCBB: ATCT) (OTCBB: ATCTU)
(OTCBB: ATCTW) today announced that, in connection with its name change
from Federal Services Acquisition Corporation (OTCBB: FDSA) (OTCBB: FDSAU)
(OTCBB: FDSAW) to ATS Corporation, OTCBB has assigned new trading symbols
that will take effect at the open of business on Tuesday, January 30, 2007.
The Company's common stock, units and warrants will continue to trade on
the over-the-counter bulletin board (OTCBB) under the new symbols ATCT,
ATCTU and ATCTW, respectively.

Advanced Technology Systems, Inc. ("ATS") is a leading provider of systems
integration and application development, IT infrastructure management and
strategic IT consulting services to U.S. federal government agencies. Since
its founding in 1978, ATS has been recognized for its custom software
development and software integration capabilities and its deep domain
expertise in federal government financial, human resource and data
management systems.

ATS is currently executing on over 140 contracts for multiple civilian and
defense agencies including: The Department of Homeland Security; The Office
of the Secretary of Defense; Defense Logistics Agency; The U.S. Air Force;
The Department of Housing and Urban Development; and Pension Benefit
Guarantee Corporation. The majority of ATS' contractual relationships are
long-term in nature, and many of its customer relationships have been in
place for over a decade. ATS derived approximately 90% of its total revenue
in fiscal 2005 from contracts with the U.S. government and
government-sponsored enterprises. The majority of its work is performed
under time and material (T&M) and fixed price contracts.

Over the past 28 years, ATS has built and implemented over 100
mission-critical systems for clients. This large installed base of work
provides continuous opportunities for maintenance and upgrades, and
positions ATS to address legacy software and systems issues and perform
complex migration projects as clients move to next generation technologies.
With over 600 employees possessing diverse, hard-to-replicate technical
skills, institutional knowledge and insight accumulated over nearly three
decades, ATS competes effectively for prime and sole source service
contracts and has succeeded in recent years in expanding its reach and
presence in the federal services market.

In addition, ATS leverages its IT services, management consulting, and
software and systems development solutions expertise into financial
institutions, insurance companies and government sponsored enterprises
through a wholly owned subsidiary, Appix, Inc. ("Appix"). Appix is one of
the largest providers of outsourced professional services at Fannie Mae and
currently serves many Fortune 500 financial services and insurance
companies.